pmastello
Well-Known Member
- Joined
- 12/9/11
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Hi,
So I am currently fermenting my first lager and as per my usual process, I used clingfilm instead of a lid and airlock. However now I am starting to get paranoid that by not allowing the free venting of gas, I might have not allowed the CO2 to carry off as much sulphur as it could have. I have even heard too much water in an airlock can increase pressure of CO2 in the fermentor which can lead to a sulphur problem, so Clingfilm would be worse. But on the other hand, don't some big breweries ferment under slight CO2 pressure with large pitching rates to keep down yeast growth and reduce esters/off flavours?
Its already two weeks into fermentation, and I am slowly ramping up the temp to allow the yeast to finish, Would it be worthwhile to change over to an airlock? or is the damage already done? Or am I imagining it to be a problem?
I've heard one solution to excess sulphur is force carbonating in a keg, then venting for a day or two...
Anyone have any advice or experience with this?
Thanks
So I am currently fermenting my first lager and as per my usual process, I used clingfilm instead of a lid and airlock. However now I am starting to get paranoid that by not allowing the free venting of gas, I might have not allowed the CO2 to carry off as much sulphur as it could have. I have even heard too much water in an airlock can increase pressure of CO2 in the fermentor which can lead to a sulphur problem, so Clingfilm would be worse. But on the other hand, don't some big breweries ferment under slight CO2 pressure with large pitching rates to keep down yeast growth and reduce esters/off flavours?
Its already two weeks into fermentation, and I am slowly ramping up the temp to allow the yeast to finish, Would it be worthwhile to change over to an airlock? or is the damage already done? Or am I imagining it to be a problem?
I've heard one solution to excess sulphur is force carbonating in a keg, then venting for a day or two...
Anyone have any advice or experience with this?
Thanks